from .submodo.subclasso import subfuc
#要相对导入，python -m PackegeModuleDemo.PMAppo运行时
from ..mymod.myclass import myfuc
def myfuc():
    print('===mymodo.myclasso===')
    print('__name__:', __name__)
    print('__package__:', __package__)
    print('this is myfuc in mymod')
    subfuc()

if __name__ == '__main__':
    myfuc();